code: def _operator(self):
      return lambda lhs, rhs: lhs.gt(rhs)
  
file_path: mars/mars/dataframe/arithmetic/greater.py
imports: import numpy
  from ...None import opcodes
  from ...utils import classproperty
  from .core import DataFrameBinopUfunc
  from .docstring import bin_compare_doc
label_desc: Use image node_id 1 for calling the DataFrameGreater obj's underlying member method code with example usage: obj._operator() and returns: function